<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="120px"
      v-loading="formLoading"
    >
      <el-form-item label="班级名称" prop="name">
        <el-input v-model="formData.name" placeholder="请输入班级名称"/>
      </el-form-item>
      <el-form-item label="老师名称" prop="teacher">
        <el-input v-model="formData.teacher" placeholder="请输入持有者名称"/>
      </el-form-item>
      <el-form-item label="成员人数上限" prop="maxMemCount">
        <el-input disabled="disabled" v-model="formData.maxMemCount" placeholder="成员人数上限"/>
      </el-form-item>
      <el-form-item label="过期时间" prop="expireTime">
        <el-date-picker
          disabled="disabled"
          v-model="formData.expireTime"
          type="date"
          value-format="x"
          placeholder="过期时间"
        />
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import {UserClassApi, UserClassVO} from '@/api/exam/userclass'
import * as ConfigApi from "@/api/infra/config";
import dayjs from 'dayjs'

/** 用户-班级 表单 */
defineOptions({name: 'TeacherClassAddForm'})

const {t} = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('新增') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  name: undefined,
  teacher: undefined,
  maxMemCount: undefined,
  expireTime: undefined,
})
const formRules = reactive({
  name: [{required: true, message: '班级名称不能为空', trigger: 'blur'}],
  teacher: [{required: true, message: '持有者名称不能为空', trigger: 'blur'}],
})
const formRef = ref() // 表单 Ref

/** 打开弹窗 */
const open = async (type: string) => {
  formType.value = type
  resetForm()

  try {
    await UserClassApi.checkUserClassFree();
  }catch (e){
    formLoading.value = false
    return;
  }

  formLoading.value = true
  try {
    formData.value.maxMemCount = await ConfigApi.getConfigKey('EXAM_CONFIG_CLASS_FREE_MEMBER_QUANTITY_KEY')
    const expireTimeDay = await ConfigApi.getConfigKey('EXAM_CONFIG_CLASS_FREE_EXPIRE_DAY_KEY')
    formData.value.expireTime = dayjs().add(Number.parseInt(expireTimeDay), 'day').toDate();
  }  finally {
    formLoading.value = false
  }
}
defineExpose({open}) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as UserClassVO
    await UserClassApi.addUserClass(data)
    message.success(t('common.updateSuccess'))
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    name: undefined,
    teacher: undefined,
    maxMemCount: undefined,
    expireTime: undefined,
  }
  formRef.value?.resetFields()
}
</script>
